Heavy Machinery and Equipment

• Material Selection: Manufactured from Grade 10.9 / 12.9 high‑strength alloy structural steel and precision alloy steel, with quenched and tempered heat treatment plus precision machining. Tensile strength ≥ 1040MPa, yield strength ≥ 940MPa, dimensional accuracy above GB/T 197 grade, and surface roughness Ra ≤ 1.6μm. These bolts deliver excellent vibration resistance, wear resistance, and dimensional stability, withstand high‑frequency vibration and alternating loads from high‑speed operation, and prevent equipment failures caused by loosening, breakage, or wear, fully meeting the precision fastening demands of large automated machinery.
• Core Advantages: High precision, vibration and wear resistance, fatigue resistance, and stable dimensions. Ideal for spindle mounting, transmission connection, and precision component positioning. They sustain long-term high‑speed vibration, alternating loads, and continuous operating stress, complying with strict accuracy and stability requirements for automated equipment, effectively reducing downtime and improving operational efficiency.
• Common Specifications: Precision socket head bolts, anti‑vibration flange bolts, shoulder bolts, and precision positioning bolts (M8–M56). Custom sizes, thread pitches, lengths, and head styles are available per equipment design drawings and standards including GB, ISO, and DIN, adapting to various precision transmission and fixing scenarios while balancing installation accuracy and operational stability.

• Material Selection: Matched with high‑precision anti‑vibration bolts using Grade 8 / 10 / 12 high‑strength precision alloy steel, with strength precisely coordinated to bolts. Precision machining and reinforcement ensure perfect dimensional matching, along with outstanding compression, shear, and wear resistance, preventing thread stripping, cracking, and wear under high‑speed vibration and alternating loads. Nuts work synergistically with bolts to maintain high precision and durability for long‑term stable operation.
• Core Advantages: High‑precision fitting, excellent vibration and wear resistance, and reliable locking performance. Integrated multi‑level precision locking structures (precision nylon insert, serrated anti‑slip teeth, precision mating flange) effectively resist high‑frequency vibration and prevent loosening. Wear-resistant design reduces thread degradation and eases maintenance disassembly, supporting continuous long‑term operation as part of a unified precision fastening system.
• Common Specifications: Precision hex lock nuts, anti‑vibration flange nuts, precision self‑locking nuts, and shoulder nuts (M8–M56). They accurately match dedicated high‑precision bolts for heavy automated equipment, fitting various assembly spaces and accuracy requirements in spindles, transmissions, and precision components.

To satisfy high‑precision, anti‑vibration, and wear‑resistant demands, specialized auxiliary fasteners are provided to enhance accuracy, stability, and durability:

• Precision flat/elastic washers: Made of precision alloy steel with uniform thickness, high flatness, and accurate load distribution. They reduce stress concentration to protect precision parts and provide vibration damping, improving fastening accuracy and stability.
• Precision dowel pins: Including parallel and taper pins with high dimensional accuracy for precise positioning of components and transmission systems, ensuring alignment and preventing failure due to positional deviation.
• Anti‑vibration locking components: Precision lock washers and toothed washers constructed from wear‑resistant materials, reinforcing anti‑loosening performance under high‑frequency vibration to ensure long‑term reliable operation.

Products undergo precision machining and strict inspection with tight tolerances, ensuring perfect fitting with precision components. This eliminates running deviations caused by low‑accuracy fasteners and guarantees precise operation and machining quality.

High‑strength precision materials and advanced processes deliver exceptional vibration and wear resistance, enduring high‑speed rotation and alternating loads without loosening, wear, or breakage. This minimizes downtime and extends service life.

Full‑process quality control covers raw material inspection, dimensional verification, mechanical testing, and specialized vibration & wear testing. Third‑party certificates from SGS, BV are available. Products conform to ISO/TS 16949 and industry‑specific standards with full traceability for high‑end automation equipment.

Suitable for automated production lines, heavy‑duty CNC machines, intelligent processing equipment, automated storage systems, and more. Non‑standard customization is available per design drawings, solving traditional issues of poor precision, weak vibration resistance, and low compatibility.

Designed for on-site assembly and after‑sales service, with precise threads and user‑friendly locking structures. They enable quick installation and disassembly using professional tools, reducing labor time and supporting efficient equipment maintenance.